Removal of heavy metals from urban stormwater runoff by filtration through different filter materials

摘要: In order to prevent the deterioration of water bodies, it is important treat non-point sources, since they are considered one major pollution sources. The stormwater runoff flow generated under urban environments due dry and wet depositions contaminants gathers high concentrations heavy metals, which can produce a bodies. different types storm events over Gothenburg area have been analysed, was assumed that gap six hours needed in finish rain event. According more than 70 % low, means mean intensity 0.5 mm/h with expected 400 m 3 l/min. A synthetic has created lead, copper, zinc, nickel, cadmium chromium be able run test simulations two field trips. total three filter cassettes five configurations analysed 36 tests 34 tests, respectively Inside these 11 materials several “low-cost” by-products industries sectors. Although, achieve uptake percentages for metals according laboratory experiments, contact time limiting factor. This phenomenon observed first session where just dissolved used. On second one, sediments also used perform realistic simulation enhancing physical retention particles added. Different regimes were concluded lower leads percentage uptake, enhanced. Moreover, among all performed best combination pine bark chitosan an average 20 systems, followed by peat as material.